Hi Juraj

The more info is below, so u will get clear idea now.

<asp:UpdatePanel ID="upLoadMap" runat="server" >
<ContentTemplate>

--- some check boxes ---
--- Hyper link: Show on map ---
if user select the checkboxes and click the hyper link, I wants to show the map in below DIV tag

<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<div id="map_canvas ">...Load Google map here.....</div>

</ContentTemplate>
</asp:UpdatePanel>